*{ margin:0; padding:0; }
			body{background-color: #A9A9A9;}
			.bk{border-bottom:3px solid  #FFFF00}
			.kd1 div{float: left;}
			.kd2{width: 228px;height: 640px;background-color: white;}
			.kd4{width: 900px;height: 600px; background-color: white;margin-top: 40px;margin-left: 130px;
				border-top: 2px solid red;}
			.to{width: 100%;margin-top: 20px; margin-left: 50px;}
			.mast{margin-top: 30px;margin-left: 80px;}
			.mast div{margin-top: 30px; width: 100%;}
			.m1{width: 700px;height: 30px;}
			.m2{width: 200px;height: 30px;}
			.m3{width: 700px;height: 130px;margin-left: 70px;}
			#bc,#qx{width: 80px;height: 30px;border-radius: 5px 5px 5px 5px;
				border: 1px solid black;margin-right: 0px;line-height:28px;margin-top: 10px;text-align:center;}
			#bc{margin-left: 300px;margin-right: 20px;background-color: #FFFF00;}
			a{text-decoration:none;color:black;}